 | Mimsy Farmer als Simona Sanna |
 | Barry Primus als Father Paul Lenox |
 | Ray Lovelock als Riccardo |
 | Carlo Cataneo als Lello Sanna |
 | Angela Goodwin als Danielle |
| Gaby Wagner als Betty Lenox |
 | Massimo Serato als Gianni Sanna |
| Ernesto Colli als Ivo |
| Leonardo Severini als Caretaker |
| Eleonora Morana als Eleonora |
 | Antonio Casale als Inspector Silvestri |
 | Giovanni Di Benedetto als Professor Mari |
 | Pier Giovanni Anchisi als Archivist at Criminal Museum (as Piero Anchisi) |
| Maria Pia Attanasio als Aunt Elvira |
 | Sergio Sinceri als Doctor |
| Pupino Samonà als Doctor with beard |
| Bruno Alias als Man in Restaurant (uncredited) |
 | Massimo Ciprari als Audience Watching Car Race (uncredited) |
 | Luciano Foti als Painter in Casino (uncredited) |
 | Cindy Girling als Blonde Corpse (uncredited) |
 | Margherita Horowitz als American Tourist (uncredited) |
| Barbara Lay als Suicidal woman in the bathroom (uncredited) |
 | Carla Mancini als Nurse (uncredited) |
 | Giuseppe Marrocco als Man at Casino (uncredited) |
 | Giulio Massimini als Waiter (uncredited) |
 | Franco Moruzzi als Bystander (uncredited) |
| Enrico Palombini als Pool Attendant (uncredited) |
 | Michele Starck als Corpse (uncredited) |
 | Alessandra Vazzoler als Fat Corpse (uncredited) |
| Sandra Wolff als American Tourist (uncredited) |
 | Luciano Zanussi als Doctor at Autopsy (uncredited) |
 | Maria Grazia Smaldone als Naná (uncredited) |
| Armando Crispino | Director |
| Lucio Battistrada | Story |
| Lucio Battistrada | Screenplay |
| Armando Crispino | Story |
| Armando Crispino | Screenplay |
| Leo Pescarolo | Producer |
| Ennio Morricone | Original Music Composer |
| Daniele Alabiso | Editor |
| Elio Balletti | Art Direction |
| Mario Ambrosino | Costume Designer |
| Giancarlo De Leonardis | Hairstylist |
| Renzo Francioni | Makeup Artist |
| Antonio Paoletti | Unit Manager |
| Egidio Quarantotto | Production Manager |
| Lorenzo Magnolia | Assistant Director |
| Elio Balletti | Set Designer |
| Ugo Celani | Sound Recordist |
| Vittorugo Contino | Still Photographer |
| Sergio Martinelli | Camera Operator |
| Renato Mascagno | Assistant Camera |
| Wanda Croce | Seamstress |
| Aldo Giuliani | Wardrobe Assistant |
| Rosalba Giacobbe | Assistant Editor |
| Margherita Reginato | Script Supervisor |
| Luciano Foti | Production Coordinator |
| Luciano Vittori | Film Processor |
| Carlo Carlini | Director of Photography |
